Pa is a masculine given name, a nickname and a surname. It may refer to:
Edwin "Pa" Watson (1883–1945), United States Army major general, friend and a senior aide to President Franklin D. Roosevelt Pa Dibba (born 1987), Gambian footballer Pa Konate (born 1994), Swedish footballer Pa Laide (), Irish footballer Pa Odiase (1934–2013), Nigerian composer who wrote his country's national anthem Pa Socheatvong (born 1957), Cambodian politician, former Governor of Phnom Penh Sam Pa, pseudonym of a mysterious Chinese businessman